I want to upgrade netbackup master server 7.5.0.5 to 7.6.0.2

Dear Friends,

I have to upgrade my netbackup master server from 7.5.0.5 to 7.6.0.2 and it is in VCS any tech note or guid on that describe step by step to perform this task

or what prerequsite need to be checkd before upgrade Storage Foundattion version is 6.0.1

Thanks You!!